Cosmonautics and counterintelligence. They seem to have completely different goals and objectives. But for many years now, the second has been trying to do everything so that the first remains First in the world and has prospects. The author - Nikolai Nikolaevich Rybkin, colonel, holder of the Orders of the Red Star and Courage, now the mayor of Star City - served in aviation and worked in military counterintelligence for more than thirty years. He dedicated the book to astronauts and specialists working next to them, as well as to the problems that these people faced and that he had to solve.